.MyHeader {
    width: 94%;
    display: flex;
    padding: 10px;
    align-items: center;
    background-color: red;
}

.MyHeader input {
    flex: 1;
    height: 40px;
    background-color: white;
    outline: none;
    padding-left: 20px;
    border: none;
    border-radius: 5px;
}

.MyHeader input span {
    width: 80px;
    text-align: center;
}